Locomotive.



A. F. BATCHELDER.

LOCOMOTIVE.

-APPUCATION FILED JAN-28,1916.

Patented Apr. 25, 1916.-

helcier,

Inventor 11621 F at mmws His ttoroeg.

Applic To all whommqyic'o noem Be it} flown that L AsA F. BATCHELDER,

a citizen of'the-United -States,.residin at Schenectady, county. of Schenectady, tate of .New York, have invented certain new and useful Imprpvements in Locomotives,

of which the following is a specification.

My invention relates to locomotives and is particularly applicable to electric locomotives.

It has for its object a novel arrangement and construction of the running gear of such a locomotive, which is divided into a plurality of sections so that the locomotive may be operated around curves'of small radius without injurious wear on the flanges of the locomotive wheels and without destructive eii'ects onthe railway tracks, and I which has-.aI system of equalization which equalizes the weight on the different wheels of the locomotive and maintains the same relation of weight regardless of track conditions within reasonable limits.

companying drawing, in which-e The various features of the novelty which characterize myinvention are pointed out with particularity in the claims annexed to and forming a part ofthis specification.

, For a better understanding of my invention,. reference may be had to the following description taken in connection with the ac- Figure 1 is a skeleton view of a locomotive embodying my nvention; vFlg. 2 1s a.

. side elevation of one-half of the'lo'comotive shown in Fig. l, and Fig.3 is a perspective view of the equalizing system of one-half of my locomotive. r

Referring to Fig. 1 ofzathe draw ng, t will be seen that mycomplete locomotive 1s divided intotwo independent halves A and B. Eachhalf of-the locomotive .is complete in itself and may be operated independently ofthe other half.

metrical truck D. Each of the unsym metrical trucks has a main truck frame 5 and. driving axles 6. mounted for a limited vertical movement therein. The. axles 6 are driven suitable elec'tric fimotors (not shown), carried the truck.-'The journal. boxes for these axles and the manner it in 1 which they aremounted inth'e truck frame? may be of'any well ,known style, and formli no part. of myv invention ation filed January 28, 1 91 Each half is provided with an unsymmetrical truck C and a sym;

The'ctruck frame 5 is me ns'bfa ofsuspension on the driving: axles 6, jointly I attwo po1nts, oneon each sidegof thetruck.

The trucknframe 5 also has-a pivotal bearng on ai guiding truck E. ,The' frames of 3 the unsymmetrical trucks arethijis supported at three points, one ,of the points of support being on, the center-pin 17.0f the guid- I ingtri ck andvone each of the. other two points of support located oneach side of the truck, half way between: the driving axles 6, These trucks are thereforein stable equilibrium. Each of the symmetrical trucks has a truck frame 7 and a plurality of drivingaxles 8 on-which the truck frame is supported bya'springsystem of suspen sionjointly at two points', one onjeach-side' of the truck. The journal boxes for the axles 8 are similar to the journal boxes for 1 the axles 6 and the manner in which they are mounted in the truck frame ,7, is similar"'75 to the mounting oflthejournal boxes 6. The axles 8 are also drivenvbyelectric motors (not'shown) carried by the truck. The symmetrical trucks D are coupled to the unsymmetrical trucks C by meansof leading connections 9 and, in order to give these trucks stability, the leading. connection- 9 is preferably ahinged joint Soarranged as j to steady the symmetrical'truck and .keep

it in its proper horizontal position, whereby i any movement of an unsymmetrical truck will effect a similar movement in the sym-' metrical truck following. Each half of the locomotive is provided with a cab-1O which has pivotal connections 11 and 12 located 90,

respectively on the unsymmetrical truck and the symmetrical truck. The weight of each 'half of the locomotive is thus distributed to its trucks and is equalized'on the difi'er ent wheels by ,the equalizing system above described. This equalizing system also maintains the same distribution of weight" iinder substantially all track conditions. 'Itif,

is necessary that one of the connections 11 or 12 .be'so constructed that it will permit-e of some longitudinal sliding m'o'tiol' as well;

as pivotal'motion." This maybe accomplished n any one of several well known ways asffor instance, by providing a" long slot in the'lower portion of one I of' the connections, in, which a projection from the upperportion of the connection moves.

One of these connections "11 or 12 (is. an.

ranged to; give a wide support to prevent prises a hinged joint 'b'utis preferably'arranged to allow for a certain amount of vertical movement so that any vertical movement of one of the symmetrical trucks will have no effect on the other symmetrical truck. In this way the two halves of the locomotive are entirely independent so far as the equalization is concerned but are coupledjtogether in such a manner as to do the proper'guiding and to take the hauling and bumping strains which are necessary in the operation of a locomotive. If desired," ho wever, the leading connection 13 maybe constructed without allowing for any vertical movement between the parts of the joint but in this case one or both of the leading. connections 9 must be arranged for such vertical movement.

Referring particularly to Fig. 3 in which the spring system of suspension for the truck frames is diagrammatically illustrated in perspective, it is seen that the frame 5 of the unsymmetrical truck 0 is supported upon its four journal boxes and thereby upon its two driving axles by springs 14,

links 15, and equalizing levers 16, arranged as shown. Vith this arrangement-each side of the truck is in effect supported jointly upon the two-journal boxes on that side at a point a. The third point of support for this truck frame is on the center pin 17 of the guiding truck E. The frame 7- 0f the symmetrical truck'D is supported upon its four journal'boxes and thereby upon its driving axles by springs 18, links 19, and equalizing levers 20. With this arrangement each side of the truck is also in effect supported jointly upon each of its two journal boxes on that side at a point'b. This means that the frame ofthe truck D is in effect supported in unstable equilibrium about an axis passing through the points 6, b but the leading connection 9 between the tru'cks'C and D or the leading connection 13 between the two trucks D (whichever is constructed to prevent vertical movement) serves to hold the frame of the truck D in stable equilibrium.

I-desire to be understood that my invention is not limited to the particular arrangement of locomotive shown and described,

and I aim in the-appended claims to cover I "frame,;a plurality of driving axles, a spring system of suspension for supporting said truck frame on said driving axles jointly at two points one on each side of said truck, and a guiding truck, said truck frame hav- 7 ing a pivotal bearing on said guiding truck, said symmetrical truck having a truck frame, a plurality of driving axles, and a spring system of suspension for supporting said truck frame on said driving axles jointly at two points one on each side of said truck, a leading connection between said unsymmetrical and said symmetrical trucks, and pivotal connections for said cab, one of said connections for said cab being located on said unsymmetrical truck and the other of said connections being located on said symmetrical truck.

2. In an electric locomotive, two running gear sections, each comprising an unsymmetrical truck and a symmetrical truck, said unsymmetrical trucks having a main truck frame, a plurality of driving axles, a spring system of suspension for supporting said truck frame on said driving axles'jointly at two points one on each side of said truck, and a guiding truck, said truck frame having a pivotal bearing on said guiding truck, said symmetrical trucks having a truck frame, a plurality of driving axles, and a spring system of suspension for supporting said truck frame on; said driving axles jointly at two points one on each side of said truck, a'leading connection between said unsymmetrical and said symmetrical trucks, a cab, and pivotal connections for said cab, one of said connections for said cab being located on said unsymmetrical truck and the other of said connections being located on said symmetrical truck, and a leading connection between said symmetrical trucks of said running gear sections.

3. In an electric locomotive, two running gear sections, each comprising an unsymmetrical truck and a symmetrical truck, said unsymmetrical trucks'having a main truck frame, a plurality of driving axles, a spring system of suspension for supporting said truck frame on said driving axles jointly at two points one on each side of said truck, and a guiding truck, said truck frame having a pivotal bearing on said guiding truck, said symmetrical trucks having a truck frame, a plurality of driving axles, and a spring system of suspension for supporting said truck frame on said driving axles jointly at two points'one on each side of said acab truck-a, leading connection between said im symmetrical and said symmetrical trucks constructed to prevent vertical movement, a

cab, and pivotal connections for said cab,

one of said conncctionsforsaidcab, being located on said unsymmetricaiitruck and the other of said connections being located on said symmetrical truck, and a leading connection between said symmetrical trucks of my hand this 25thday of January, 1916..

ASA. F; A'rcHE DEm 

